Adjusted Body Weight Calculator
Calculate ideal body weight and adjusted body weight for medication dosing
Note: Adjusted body weight is used for medication dosing in obese patients.
Clinical judgment should always be used in conjunction with patient assessment and medication guidelines.
Ideal Body Weight (IBW)
-
Adjusted Body Weight (ABW)
-
Body Mass Index (BMI)
-
Weight Classification
-
Dosing Recommendation
-
Weight Calculations
IBW Formula:
Male: 50 + 2.3 × (height in inches - 60)
Female: 45.5 + 2.3 × (height in inches - 60)
ABW Formula:
ABW = IBW + 0.4 × (Actual Weight - IBW)
BMI Formula:
BMI = Weight (kg) / Height (m)²
Male: 50 + 2.3 × (height in inches - 60)
Female: 45.5 + 2.3 × (height in inches - 60)
ABW Formula:
ABW = IBW + 0.4 × (Actual Weight - IBW)
BMI Formula:
BMI = Weight (kg) / Height (m)²
Clinical Recommendations
Enter patient information and click calculate to see recommendations.
Important: This calculator provides estimates for medication dosing assistance.
Clinical decisions should be based on comprehensive patient assessment, including
renal function, liver function, and other clinical factors. Always follow medication
guidelines and consult with pharmacists when needed.